White LED for general illumination applications
Name
228415615-MIT.pdf
Description
Full printable version
Size
4.17 MB
Format
Adobe PDF
Checksum (MD5)
ae2e5848bd2ad8fa69dc746f3b919d26
Author(s)
Li, Fung Yuen Ken
Advisor(s)
Thomas W. Eagar.
Alternative Title
White light emitting device for general illumination applications
Date Issued
2007
Publisher
Massachusetts Institute of Technology
Abstract
In the 21st century, mankind faces problem of energy crisis through depletion of fossil fuels as well as global warning through the production of excessive greenhouse gases. Hence, there is an urgent need to look for new sources of renewable energy or ways to utilize energy more effectively. Solid state lighting (SSL) is a major area of research interest to use energy in a more efficient manner. Early light emitting devices (LEDs) were originally limited their use for low power indication lights. Later research produces high brightness LEDs (HB-LEDs) as well as blue color LEDs. This brings to reality of the entire visible light spectrum. White light is also made possible. As with other technologies, numerous obstacles will have to be surmounted in bringing LEDs from the laboratory to the marketplace. LEDs will also have to compete with established technologies such as incandescent and fluorescent lighting. This thesis will describe the current state of high powered LEDs, examine challenges faced by LEDs and look at future markets. Evaluation in the potential of LEDs for general illumination will be carried out through cost modeling and performance analysis.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007.
Includes bibliographical references.
Subjects
Materials Science and Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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reproduction or distribution in any format is prohibited without written
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